Ultrasonic Switches. Features & Benefits

Transcription

1 Why use an ultrasonic switch over other level technologies? Depending upon your application, there may be three or four technologies equally suited for your application; however; only one will be the best choice when considering its features and benefi ts. Ultrasonic switches are a cost-effective solution for your applications. Installation requires mounting the sensor (threaded or fl anged) to the vessel, connecting the power and control wires, and applying power. There is no additional set-up or calibration required. Since it is an electronic instrument with no moving parts, preventive maintenance is limited to an annual visual inspection. The only recommended spare part is the board at a quantity of one board for every 10 units. A technician with basic electrical skills (wiring) can service the instrument. Features & Benefits Cost In addition to the price of the instrument, you must consider the cost of installation, set-up and calibration. Maintenance You need to factor in the frequency of preventative maintenance. Also, consider the cost of keeping key spare parts on the shelf. Skill What skill level is required of your maintenance personnel to service the instrument. Registered Quality System to ISO 9001:2000 1/24

2 Applications Ultrasonic switches are simple to apply and use. There are only a few limitations to their use: The media must be liquid Process temperature between -40 and 250 o F (-40 to 121 o C) The media must have less than 5% suspended solids No aeration in fl uids with a viscosity of 100cP (30W motor oil) or greater The following chart will assist you in selecting the right product for your application. Single-Point Sensing Line Power Loop Power Integral Mount Electronics Integral Mount Electronics with Sensor Monitor (Self-Test) Remote Mount Electronics Remote Mount Electronics with Sensor Monitor (Self-Test) 701 Pages Pages Pages Pages Pages Pages Pages Pages Pages Pages 8-9 Dual-Point Sensing Line Power Loop Power Alarm or Pump Control Alarm or Pump Control with Sensor Monitor (Self-Test) 712 Pages Pages N/A N/A Principle An ultrasonic switch is a device that uses inaudible high-frequency sound (ultrasound) to detect the presence or absence of a liquid at a designated point. The device consists of an electronic control unit and a sensor. Ultrasonic level switches use the properties of sound transmission in vapor and liquids to detect liquid level. When sound travels in air, it loses a great deal of signal strength. When traveling in liquid, sound retains almost all of its signal strength. To detect liquid level, we must determine if there is a liquid or gas (air) in the gap. Since liquids have a higher density than gasses, it is easier to transmit sound through them. One side of the sensor gap transmits sound, the other side detects it. When liquid is present, a high amount of sound is received at the detection side. When gas (air) is present, a small amount of sound is received. The electronics detect this difference and switch a relay accordingly. 2/24 Registered Quality System to ISO 9001:2000

3 Principle Ultrasonic switch sensors contain two piezoelectric crystals, one transmits sound and one receives sound. Each crystal is mounted on one side of a gap in the metal sensor. The transmit crystal generates high frequency sound (1MHz to 3 MHz) that is directed across the gap to the receiver crystal. The receiver crystal converts the sound energy received into an electric signal, which is processed by the electronics to determine if the gap has liquid or air in it. The drawing below shows the basic construction of an ultrasonic level switch sensor. An electrical signal is sent to the transmit crystal, which causes it to vibrate and produce high frequency sound. The receive crystal converts the high frequency sound that strikes it to another electrical signal, which is sent back to the electronics for processing. The sound energy that makes it across the sensor gap is very weak in air, and becomes very strong in liquid. Transmit Receive Application Conditions Ultrasonic level switches can be used in a wide variety of applications without any calibration or setup. However, there are limitations to the types of process they will work in. The factors below must be taken into consideration before selecting an ultrasonic level switch for your application. Liquids only - the process media must be a liquid. The ultrasonic level switch cannot detect the difference between two gases or a gas and a solid. The even density of a liquid is required for proper detection. Clean liquids only - a liquid that has too high a percentage of solids will not transmit sound well enough to allow detection. Typically 5% suspended solids are the maximum amount allowed. The liquid must fl ow - an application where the liquid cannot drain out of the sensor gap will cause false alarms. If a liquid is too viscous to fl ow out of a 3/4 gap then the unit will not operate properly. Sometimes this can be solved by different mounting, but some liquids are just too viscous. No (or few) bubbles - especially in fl uids with a viscosity higher than 100cP (30W motor oil). Large bubbles in thick fl uids will block the sound signal from crossing the gap. Low viscosity fl uids can have a fairly large amounts of bubbles as they tend to be very small (Alka-Seltzer in water). If these guidelines are properly observed, the ultrasonic level switches will provide trouble-free operation without any calibration or periodic adjustment. Registered Quality System to ISO 9001:2000 3/24

4 Series 701 Single Point The Series 701 tip-sensitive ultrasonic switch is a single-point device designed for economical detection of clean liquids. There are no moving parts and no calibration. The 701 is available either integral or remote mounted. An optional time delay can be used to eliminate false alarms due to turbulence in the process. An optional fi eld selectable fail-safe switch is also available. The standard unit is set to High-level Failsafe (HLFS). Features No calibration required 10A DPDT relay output FM Approved or CSA Certifi ed for hazardous locations Line and loop powered versions 701 Single Point Product Specifications Input Power Line Fuses Loop Output Type Line Loop Loop Resistance Repeatability 120 VAC, 50/60 Hz 240 VAC, 50/60 Hz 24 VDC VDC Intrinsically Safe Field replaceable (line power only) 10A DPDT, 250 VAC 10A DPDT, 30 VDC DC rating shown for resistive loads 8mA (dry), 16 ma (Wet)-Standard 765 ohms 24 VDC (2mm) Maximum Current Draw (Line Power) 24 VDC 100 ma 120 VAC 35 ma 240 VAC 18 ma Response Time On Off Enclosure Environmental Rating Conduit Connection Maximum Remote Distance from Sensor Ambient Temperature Range 0 second 1 second NEMA 4X; IP65 3/4 NPT 50 feet (15.2 meters) -40 to 160 o F (-40 to 71 o C) Failsafe HLFS-Standard; field selectable is optional Process Temperature Range -40 to 250 o F (-40 to 121 o C) Maximum Process Pressure 2000 psig (138 bar) * See page 22 for sensor shipping weights. 4/24 Registered Quality System to ISO 9001:2000

5 Power Supply 24 VDC (K1 and R1 housings only) 120 VAC (K1 and R1 housings only) 240 VAC (K1 and R1 housings only) 24 VDC (Loop) (K4 and R4 housings only) Electrical Housing Integral Remote Integral (9 Power Only) Remote (9 Power Only) K1 R1 K4 R CS Al FM Fl BK FS OD OF PK RG PP RR Accessories 701 K1 U P7 C FS Model Number Registered Quality System to ISO 9001:2000 TT VV PY YY How to Order Model Number System 701-K1-U-P7-C-FS The Series 701 is comprised of two parts. The fi rst is the electronics and housing; the second is the sensor. Select the electronics and housings on this page and refer to pages 18 & 19 for the sensor model number. The housing dimensions can be seen on pages 14 & 15. When ordering a remote housing, order remote cable part number 300-XX-S (XX = length in feet). Orders must have complete model numbers, i.e. each component must have a designator. * Match sensor approvals to electronics approvals to maintain the agency listing integrity. Agency Approval CSA Certifi ed Explosion Proof* CSA Certifi ed Intrinsically Safe* (9 power only) (K4 housings only) FM Approved Explosion Proof* FM Approved Intrinsically Safe* (9 power only) (K4 housings only) Remote electronics fl at surface mounting bracket (R housings only) (see pages 14 & 15) Field selectable Failsafe switch (6, 7, 8 power only) On delay time (6, 7, 8 power only) (specify time from chart on page 16) Off delay timer (6, 7, 8 power only) (specify time from chart on page 16) Pipe mounting kit, BK accessory required (R housing only) (see pages 14 & 15) Gold-contact relay (6, 7, 8 power only) Fiber tag with customer specifi ed tag information SS nameplate wired to the unit with customer specifi ed tag information SS nameplate permanently affi xed to housing with customer specifi ed tag information Fungicidal varnish applied to housing exterior Powder coat epoxy coating applied to housing exterior Epoxy coating applied to housing exterior (200 hours - salt spray) Agency Safety Method Approval Model(s) FM Explosion Proof Class I, Groups C, D; Class II, Groups E, F, G; Class III, Division 1 701xx-U-Px-FM Intrinsically Safe Class I, Groups C, D; Class II, Groups E, F, G; Class III, Division 1 CSA Explosion Proof Class I, Groups C, D Class II, Groups E, F, G; Class III, Division 1 Intrinsically Safe Class I, Groups C, D Class II, Groups E, F, G; Class III, Division 1 701K4-U-P9-FI 701xx-U-Px-CS 701K4-U-P9-AI 5/24

6 Series 711 Single Point The Series 711 ultrasonic switch is a versatile single-point device designed for the detection of clean liquids. The 711 is available with a variety of sensor types to meet most process conditions. It is available integral or remote mounted and comes standard with fi eld-selectable failsafe. Features No calibration required Can be used with notch, epoxy and viscous type sensors FM Approved and CSA Certifi ed, for hazardous locations Field-selectable failsafe 711 Single Point Product Specifications Input Power 120 VAC, 50/60 Hz 240 VAC, 50/60 Hz 24 VDC Response Time On Off 250 msec 250 msec Output Type 10A DPDT, 250 VAC 10A DPDT, 30 VDC DC rating shown for resistive loads Enclosure Environmental Rating Conduit Connection NEMA 4X; IP65 3/4 NPT Repeatability Failsafe (2mm) Field-selectable Maximum Current Draw (Line Power) 24 VDC 140 ma 120 VAC 60 ma 240 VAC 30 ma Maximum Remote Distance 50 ft. (15.2 m) from Sensor Ambient Temperature Range Process Temperature Range -40 to 160 o F (-40 to 71 o C) -40 to 250 o F (-40 to 121 o C) Maximum Process Pressure 2000 psig (138 bar) *See page 22 for sensor shipping weights. 6/24 Registered Quality System to ISO 9001:2000

7 Process Connection Power Supply Electrical Housing Probe Type Notch Viscous N V How to Order Model Number System 711-K1-N-P6-C-PP The Series 711 is comprised of two parts. The fi rst is the electronics and housing; the second is the sensor. Select the electronics and housings on this page and refer to pages 18 & 19 for the sensor model number. The housing dimensions can be seen on pages 14 & 15. When ordering a remote housing, order remote cable part number 300-XX-S (XX = length in feet). Orders must have complete model numbers, i.e. each component must have a designator. * Match sensor approvals to electronics approvals to maintain the agency listing integrity. Integral Remote 1 K R 24 VDC VAC VAC C G Sensor Material Metal Tefl on (N Probe Only) Accessories 711 K1 N P 6 C PP Model Number 5 CS FM BK PK RG PP RR TT VV PY YY CSA Certifi ed Explosion Proof* FM Approved Explosion Proof* Remote electronics fl at surface mounting bracket (R housing only) (see pages 14 & 15) Pipe mounting kit, BK accessory required (R housing only) (see pages 14 & 15) Gold-contact relay (6, 7, 8 power only) Fiber tag with customer specifi ed tag information SS nameplate wired to the unit with customer specifi ed tag information SS nameplate permanently affi xed to housing with customer specifi ed tag information Fungicidal varnish applied to housing exterior Powder coat epoxy coating applied to housing exterior Epoxy coating applied to housing exterior (200 hours - salt spray) Agency Approvals Agency Safety Method Approval Model(s) FM Explosion Proof Class I, Groups C, D; Class II, Groups E, F, G; Class III, Division 1 711x1-N-Px-FM CSA Explosion Proof Class I, Groups C, D Class II, Groups E, F, G; Class III, Division 1 711x1-N-Px-CS Registered Quality System to ISO 9001:2000 7/24

8 The Series 721 ultrasonic switch is an advanced single-point device designed to meet your needs for overfi ll protection. In addition to the features of the 711, the 721 includes a Sensor Monitor. This circuit continuously tests the functionality of the electronics and sensor. The Sensor Monitor Relay de-energizes if a fault is detected. The 721 is available with a variety of sensor types to meet most process conditions. It is available integral or remote mounted and comes standard with fi eld-selectable failsafe. Features No calibration required Continuous self-test (sensor monitor) verifi es operation FM or CSA Certifi ed for hazardous locations Field-selectable failsafe On/Off time delay is standard 721 Single Point Series 721 Single Point Product Specifications Input Power Line 120 VAC, 50/60 Hz 240 VAC, 50/60 Hz 24 VDC Maximum Current Draw (Line Power) 24 VDC 220 ma 120 VAC 60 ma 240 VAC 30 ma Loop Output Type Line Alarm Sensor Monitor Loop Alarm Sensor Monitor Loop Resistance VDC (Intrinsically safe) 10A DPDT, 250 VAC 10A DPDT, 30 VDC DC rating shown for resistive loads 10A DPDT, 250 VAC 10A DPDT, 30 VDC DC rating shown for resistive loads 8 ma (Dry), 16 ma (Wet) 5 ma or 19 ma; Field selectable 650 ohms 24 VDC Response Time (Line Power) On Off Response Time (Loop Power) On Off Time Delay Enclosure Environmental Rating Conduit Connection 250 msec 250 msec 0.5 seconds 5 seconds 0-30 seconds NEMA 4X; IP65 3/4 NPT Maximum Remote Distance 50 ft. (15.2 m) from Sensor Ambient Temperature Range -40 to 160 o F (-40 to 71 o C) Repeatability Failsafe (2mm) Field-selectable Process Temperature Range Maximum Process Pressure -40 to 250 o F (-40 to 121 o C) 2000 psig (138 bar) *See page 22 for sensor shipping weights. 8/24 Registered Quality System to ISO 9001:2000

9 How to Order Model Number System 721R2-N-P7-C-FM The Series 721 is comprised of two parts. The fi rst is the electronics and housing; the second is the sensor. Select the electronics and housings on this page and refer to page 18 for the sensor model number. The housing dimensions can be seen on pages 14 & 15. When ordering a remote housing, order remote cable part number 300-XX-S (XX = length in feet). Orders must have complete model numbers, i.e. each component must have a designator. Process Connection Sensor Material Electrical Housing Probe Type Integral Remote Power Supply 24 VDC VAC VAC 8 24 VDC (Loop) 9 Notch Viscous 1 K R 2 N V Metal Tefl on 3 4 C G 5 CS Al FM Fl BK PK RG PP RR TT VV PY YY Accessories CSA Certifi ed Explosion Proof* CSA Certifi ed Intrinsically Safe (9 power only) (N probe only) (K housing only) FM Approved Explosion Proof* FM Approved Intrinsically Safe* (9 power only)(n Probe only) (K housing only) Remote electronics fl at surface mounting bracket (R housing only) (see pages 14 & 15) PK Pipe mounting kit, BK accessory required (R housing only) (see pages 14 & 15) Gold-contact relay (6, 7, 8 power only) Fiber tag with customer specifi ed tag information SS nameplate wired to the unit with customer specifi ed tag information SS nameplate permanently affi xed to housing with customer specifi ed tag information Fungicidal varnish applied to housing exterior Powder coat epoxy coating applied to housing exterior Epoxy coating applied to housing exterior (200 hours - salt spray) 721 R 2 N P 7 C FM Model Number Agency Approvals Agency Safety Method Approval Model(s) FM Explosion Proof Class I, Groups C, D; 721x2-N-Px-FM Class II, Groups E, F, G; Class III, Division 1 Intrinsically Safe Class I, Groups C, D; 721K2-N-P9-FI Class II, Groups E, F, G; Class III, Division 1 CSA Explosion Proof Class I, Groups C, D 721x2-N-Px-CS Class II, Groups E, F, G; Class III, Division 1 Intrinsically Safe Class I, Groups C, D 721K2-N-P9-AI Class II, Groups E, F, G; Class III, Division 1 Registered Quality System to ISO 9001:2000 9/24

10 Series 712 Dual Point (Without Self-Test) The Series 712 ultrasonic switch is a versatile dual-point designed for the detection of clean liquids. The dual-output can be used as independent alarm points or used in tandem to provide pump control. It is available integral or remote mounted and comes standard with fi eld-selectable failsafe. Features No calibration required Optional pump control logic available FM and CSA Certifi ed for hazardous locations Field-selectable failsafe 712 Dual Point Product Specifications Input Power Line Output Type Repeatability Failsafe 120 VAC, 50/60 Hz 240 VAC, 50/60 Hz 24 VDC (2) 10A DPDT, 250VAC (2) 10A DPDT, 30VDC DC rating shown for resistive loads (2mm) Field-selectable Enclosure Environmental Rating Conduit Connection NEMA 4X; IP65 1 NPT Maximum Remote Distance 50 ft. (15.2 m) from Sensor Ambient Temperature Range Process Temperature Range -40 to 160 o F (-40 to 71 o C) -40 to 250 o F (-40 to 121 o C) Maximum Current Draw 24 VDC 280 ma 120 VAC 120 ma 240 VAC 60 ma Response Time (Line Power) On Off 250 msec 250 msec Maximum Process Pressure Shipping Weight* 2000 psig (138 bar) 7 lbs. (3.2 kg) lbs. (4.8 kg) for cast iron housing + 2 lbs. (1 kg) for remote *See page 22 for sensor shipping weights. 10/24 Registered Quality System to ISO 9001:2000

11 Model Number System 712K3-N-P6-C-YY 712 ultrasonic switch with integral housing, 240VAC power supply, with optional epoxy coating. How to Order The 712 is comprised of two parts. The fi rst is the electronics and housing; the second is the sensor. Refer to page 19 for the sensor model number. Electrical Housing Integral (Aluminum) Integral (Cast Iron) Remote (Aluminum) (order remote cable part number 300-XX-D, XX = length in feet) 2 Power Supply 24 VDC VAC VAC 8 1 K L R 2 3 CS FM PL BK PK RG PP RG RR TT VV PY YY Accessories CSA Certifi ed Explosion Proof* FM Approved Explosion Proof* (except L3 housing) Pump logic (see page 22 for function and ratings) Remote electronics fl at surface mounting bracket (R housing only)(see page 19) Pipe mounting kit, BK accessory required (R housing only)(see page 19) Gold-contact relay (6, 7, 8 power only) Fiber tag with customer specifi ed tag information Gold-contact relay (6, 7, 8 power only) SS nameplate wired to the unit with customer specifi ed tag information SS nameplate permanently affi xed to housing with customer specifi ed tag information Fungicidal varnish applied to housing exterior Powder coat epoxy coating applied to housing exterior Epoxy coating applied to housing exterior (200 hours - salt spray) 712 K 3NP 6 C YY Model Number Agency Approvals Agency Safety Method Approval Model(s) FM Explosion Proof Class I, Groups B, C, D; Class II, Groups E, F, G; Class III, Division 1 Class I, Groups C, D; Class II, Groups E, F, G; Class III, Division 1 CSA Explosion Proof Class I, Groups C, D Class II, Groups E, F, G; Class III, Division 1 Class I, Groups C, D Class II, Groups E, F, G; Class III, Division 1 712K3-N-Px-FM 712R3-N-Px-FM 712K3-N-Px-CS 712L3-N-Px-CS 712R3-N-Px-CS Registered Quality System to ISO 9001: /24

12 Series 722 Dual Point The Series 722 ultrasonic switch is an advanced dual-point device designed to meet your needs for sump/pump control. In addition to the features of the 712, the 722 includes a Sensor Monitor. This circuit continuously tests the functionality of the electronics and sensor (both gaps). The Sensor Monitor Relay de-energizes if a fault is detected. It is available integral or remote mounted and comes standard with fi eldselectable failsafe and time delay. Features No calibration required Continuous self-test (sensor monitor) verifi es operation of the unit FM and CSA Certifi ed for hazardous locations Field-selectable failsafe On/Off time delay is standard 722 Dual Point Product Specifications Input Power Line Output Type Alarm Repeatability Sensor Monitor 120 VAC, 50/60 Hz 240 VAC, 50/60 Hz 24 VDC (2) 10A DPDT, 250 VAC (2) 10A DPDT, 30 VDC DC rating shown for resistive loads (2) 10A DPDT, 250 VAC (2) 10A DPDT, 30 VDC DC rating shown for resistive loads (2mm) Response Time On Off Time Delay Enclosure Environmental Rating Conduit Connection 250 msec 250 msec 0-30 seconds NEMA 4X; IP65 1 NPT Maximum Remote Distance 50 ft. (15.2 m) from Sensor Ambient Temperature Range -40 to 160 o F (-40 to 71 o C) Failsafe Field-selectable Maximum Current Draw (Line Power) 24 VDC 440 ma 120 VAC 120 ma 240 VAC 60 ma Process Temperature Range Maximum Process Pressure Shipping Weight* -40 to 250 o F (-40 to 121 o C) 2000 psig (138 bar) 7 lbs. (3.2 kg) lbs. (4.8 kg) for cast iron housing + 2 lbs. (1 kg) for remote. *See page 22 for sensor shipping weights. 12/24 Registered Quality System to ISO 9001:2000

13 Model Number System 722K3-N-P6-C-PL 722 ultrasonic switch with integral housing copper-free aluminum, 24VDC power supply, with optional pump logic CS FM PL BK PK PP RG RR TT VV YY Accessories 722 K 3NP 6 C PL Model Number How to Order The 722 is comprised of two parts. The fi rst is the electronics and housing; the second is the sensor. Refer to page 19 for the sensor model number. Electrical Housing Integral (Aluminum) Integral (Cast Iron) Remote (Aluminum) Power Supply 24 VDC 120 VAC 240 VAC 1 K L R CSA Certifi ed Explosion Proof* FM Approved Explosion Proof* (except L3 housing) Pump logic (see page 16 for function and ratings) Remote electronics fl at surface mounting bracket (R housing only) (see pages 14 & 15) PK Pipe mounting kit, BK accessory required (R housing only)(see pages 14 & 15) Fiber tag with customer specifi ed tag information Gold-contact relay (6, 7, 8 power only) SS nameplate wired to the unit with customer specifi ed tag information SS nameplate permanently affi xed to housing with customer specifi ed tag information Fungicidal varnish applied to housing exterior Epoxy coating applied to housing exterior Agency Approvals Agency Safety Method Approval Model(s) FM Explosion Proof Class I, Groups B, C, D; 722K3-N-Px-FM Class II, Groups E, F, G; Class III, Division 1 Class I, Groups C, D; Class II, Groups E, F, G; Class III, Division 1 722R3-N-Px-FM CSA Explosion Proof Class I, Groups B, C, D Class II, Groups E, F, G; Class III, Division 1 Class I, Groups C, D Class II, Groups E, F, G; Class III, Division 1 722K3-N-Px-CS 722L3-N-Px-CS 722R3-N-Px-CS Registered Quality System to ISO 9001: /24

14 Housings Dimensions in this catalog are for reference only. They may be changed without notice. Contact the factory for certifi ed drawings for a particular model number. Dimensions are expressed as millimeter over inches (Linear = mm/in.). Housing: K1, K2 Drawing Housing: R1, R2 Drawing Process Connection *Add to Length 3/4 NPT(M) Shown 1 NPT(M) Add /2 NPT(M) 2 NPT(M) Add /24 Registered Quality System to ISO 9001:2000

15 Dimensions Dimensions in this catalog are for reference only. They may be changed without notice. Contact the factory for certifi ed drawings for a particular model number. Dimensions are expressed as millimeter over inches (Linear = mm/in.). Housing: R3 Drawing Housing: K3, L3 Drawing Process Connection *Add to Length 3/4 NPT(M) Shown 1 NPT(M) Add /2 NPT(M) 2 NPT(M) Add Housing: K4 Drawing Housing: R4 Drawing Registered Quality System to ISO 9001: /24

16 Pump Logic Accessory Two point ultrasonic level switches can be supplied with an on-board DPDT relay for pump control. The relay is rated 10 amp, 250 VAC; 10 amp, 30 VDC (resistive) and it can be fi eld wet to pump up (left diagram) or pump down (right diagram). Adding the pump logic (PL) accessory to the end of a model number changes level indication relays to SPDT and changes current requirements according to the table shown: Up Relay Off Relay On Relay On Relay Off Down Supply Voltage Maximum Current Draw 24 VDC 350 ma 120 VAC 120 ma 240 VAC 50 ma Time Delay When using time delay accessory OD or OF, choose a standard time delay from the chart below. Include the time delay after the model number. For example: 701K1-U-P6-C-OD OD = 60 seconds. Time Delay in Seconds (choose one) Approximate Shipping Weights Actual shipping weights may vary from charted values because of product material, confi gurations and packaging requirements. For remote electrical housing add 2 lbs. (1kg) to total weight. Ultrasonic Series Weight (lbs.) (kgs) Additional Weights 701, , lbs. (4.8 kg) for cast iron housing 16/24 Registered Quality System to ISO 9001:2000

17 Remote electronic housings are supplied for line mounting as a standard. Optional brackets are available for fl at surface or pipe mounting. Mounting Bracket Accessory Drawing The basic BK bracket can be adapted for mounting onto 1-1/2 to 2 pipe or stanchion by adding designator PK after BK. For the basic fl at surface mounting bracket, add designator BK to the end of any model number from the controls section in the front of this catalog. Linear = mm/in. Drawing Registered Quality System to ISO 9001: /24

18 Single-point Ultrasonic Sensor Model Number System 371-U-2-C-3A-RR The 371 sensor is designed for use with all signal-point ultrasonic electronic unit. 4 Process Connection Sensor Material 316SS (standard) Monel (N type sensor) Carpenter 20 (N type sensor) Hastelloy C (N type sensor) Tefl on (N type sensor) 3 Insertion Length 2 3 C A L J G 3A 4A 5A 6A 3D 3E 3F 3G 3H 3K 3L 3M 3N 3P 3/4 NPT 1 NPT 1-1/2 NPT 2 NPT 1 150# ANSI RF Flange 1-1/2 150# ANSI RF Flange 2 150# ANSI RF Flange 3 150# ANSI RF Flange 4 150# ANSI RF Flange 1 300# ANSI RF Flange 1-1/2 300# ANSI RF Flange 2 300# ANSI RF Flange 3 300# ANSI RF Flange 4 300# ANSI RF Flange Enter the required probe length, A, in inches (as a decimal, up to fi ve characters including the decimal, leading zeroes not required.) Maximum two digits after decimal point). Minimum 3 (Minimum 1.16 for Sensor U; minimum 3 for sensor with fl ange). Maximum Sensor Type 1 Probe Length in Decimal Form 5 CS AI FM FI Accessories CSA Certifi ed Explosion Proof* (U & N type sensors) CSA Certifi ed Intrinsically Safe* (U & N type sensors) FM Approved Explosion Proof* (U & N type sensors) FM Approved Intrinsically Safe* (U & N type sensors) Vertical Gap (701) Horizontal (Notch) Gap (711, 721) Viscous Gap (711, 721) 1 U N V PP RR TT Fiber tag with customer specifi ed tag information SS nameplate wired to the unit with customer specifi ed tag information SS nameplate permanently affi xed to housing with customer specifi ed tag information 371 U 2 C 3A RR Model Number 1 V type sensor requires a 3 or larger fl ange connection. 2 N types sensor with G material has a maximum length of G Sensor material is only available with 3/4 process connection. *Match sensor approvals to electronics approvals to maintain the agency listing integrity. 18/24 Registered Quality System to ISO 9001:2000

19 Dual-point Ultrasonic Sensor Model Number System 372-N-12-C3A-CS The 372 sensor in designed for use with all dual-point ultrasonic electronic units. 4 Process Connection Sensor Material Insertion Length B 316SS (standard) Monel Carpenter 20 Hastelloy C 2 3 C A L J 3A 4A 5A 6A 3D 3E 3F 3G 3H 3K 3L 3M 3N 3P 3/4 NPT 1 NPT 1-1/2 NPT 2 NPT 1 150# ANSI RF Flange 1-1/2 150# ANSI RF Flange 2 150# ANSI RF Flange 3 150# ANSI RF Flange 4 150# ANSI RF Flange 1 300# ANSI RF Flange 1-1/2 300# ANSI RF Flange 2 300# ANSI RF Flange 3 300# ANSI RF Flange 4 300# ANSI RF Flange Enter the required probe length, B in inches (as a decimal, up to fi ve characters including the decimal, leading zeroes not required.) Maximum two digits after decimal point. Minimum 3. Maximum 48. Probe Length in Decimal Form 5 CS FM Accessories CSA Certifi ed Explosion Proof* FM Approved Explosion Proof* Insertion Length A Enter the required probe length, A, in inches (as a decimal, up to fi ve characters including the decimal; leading zeros not required). Maximum two digits after decimal point. Minimum 3. Maximum Probe Length in Decimal Form PP RR TT Fiber tag with customer specifi ed tag information SS tag wired to probe with customer specifi ed tag information SS nameplate permanently affi xed to housing with customer specifi ed tag information 372 N 1 2 C 3A CS Model Number See page 22 for fl ange shipping weights. *Match sensor approvals to electronics approvals to maintain the agency listing integrity. Registered Quality System to ISO 9001: /24

20 Electronics Sensors Point Level Control 4-20 ma (P9) Certificates C1 C3 C4 Calibration Inspection Report Compliance / Conformance Horizontal Single Horizontal Dual Series 701 Vertical Tefl on, Epoxy, Viscous Certificates Hydrostatic Pressure Test C2 Note: The echosonix TM Transmitter has only one available certifi cate; C4 - Compliance/Conformance. The Point Level Control 4-20 ma (P9) is not available with C6 - Insulation Resistance Ultrasonic Switches Dimensions shown are for reference only. Contact the factory for certifi ed dimension drawings. Linear = mm/in. Type U Single Point (Threaded) Drawing Sensor Dimensions Process Connection *Add to Length 3/4 NPT(M) Shown 1 NPT(M) Add /2 NPT(M) 2 NPT(M) Add Type U Single Point (Flanged) Drawing /24 Registered Quality System to ISO 9001:2000

21 Sensor Dimensions Dimensions shown are for reference only. Contact the factory for certifi ed dimension drawings. Linear = mm/in. Process Connection *Add to Length 3/4 NPT(M) Shown 1 NPT(M) Add /2 NPT(M) 2 NPT(M) Add Type N Single Point (Threaded) Drawing Type N Single Point (Flanged) Drawing Registered Quality System to ISO 9001: /24

22 Sensor Dimensions Dimensions shown are for reference only. Contact the factory for certifi ed dimension drawings. Linear = mm/in. Type N Dual Point (Threaded) Drawing Type N Dual Point (Flanged) Drawing /24 Registered Quality System to ISO 9001:2000

23 Sensor Dimensions Dimensions shown are for reference only. Contact the factory for certifi ed dimension drawings. (Linear = mm/in.) Type V Single Point (Flanged) Drawing Sensor Style Types U & N Type V Shipping Weight 0.5 lbs. for fi rst 6 1 lb. (0.5 kg) for each additional lbs. (5.2 kg) for fi rst 6 (includes fl ange) 1 lb. (0.5 kg) for each additional 12 Flange Weight and Pressure Rating Process Connection Add to Shipping Weight lbs. kg 3D E F G 9 4 3H K L M N P Maximum Pressure Rating 275 psig (19 bar) 720 psig (50 bar) Registered Quality System to ISO 9001: /24

24 SOR offers a full line of commercial-grade process instruments. echosonix Level Transmitters Level Switches Level Temperature Switches Pressure Temperature Pressure Switches Flow Switches Flow Process Instrumentation We Deliver Quality On Time SOR Inc West 105th Street Lenexa, Kansas Phone Toll Free Fax SOR Europe, Ltd. Star Road Partridge Green, Sussex RH13 8RA, United Kingdom Phone Fax sales@soreur.co.uk SOR - China Room 903, No. 10 Building Wan Da Plaza No. 93 Jian Guo Road Chao Yang District Beijing, China Phone +86 (10) Fax +86 (10) Registered Quality System to ISO 9001:2000 (06.08) 2008 SOR Inc.